Resilient, encrypted backups for your Proton Drive data

Back up your Proton Drive workloads with Plakar to protect against data loss, corruption, and ransomware. Immutable, encrypted, and restorable even offline and across environments.

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Proton Drive is privacy-focused but still needs backup

Proton Drive is a privacy-first, end-to-end encrypted cloud storage service from Proton, trusted by individuals and organizations for storing sensitive files and documents. Its zero-knowledge encryption ensures privacy, but sync and trash features alone don't protect against accidental deletion, ransomware, or account compromise. Plakar provides encrypted, deduplicated snapshots of your Proton Drive stored wherever you choose, giving you independent recovery options even if your Proton account data becomes inaccessible.

Why protecting Proton Drive matters

Proton Drive provides strong privacy through end-to-end encryption, but like any cloud storage platform, it faces risks from accidental deletion, device compromise, and sync propagation:

  • Instant Deletion: If you or a collaborator accidentally delete a folder, that deletion spreads to every synced device immediately.
  • Limited Recovery Window: Proton Drive provides a trash retention period, but if data loss is discovered after that window closes, those files may be permanently gone.
  • Ransomware: If your local files are encrypted by malware, Proton Drive will sync those corrupted versions, overwriting your healthy data in the cloud.

For important documents and sensitive files, an independent backup provides an additional safety layer that remains available regardless of what happens in your live Proton Drive environment.

Security and Compromise

Cloud storage accounts can be compromised through credential leaks, phishing, or device theft. When an account is accessed without authorization:

  • Mass Deletion: Unauthorized access can result in the deletion of files across all synced devices.
  • Synchronization Issues: Malicious or accidental changes replicate instantly across your environment.
  • Limited Recovery Options: Once the trash retention period expires, recovery becomes difficult or impossible.

Plakar creates immutable snapshots that exist outside your Proton Drive sync scope. These backups are encrypted and remain intact even if your Proton Drive account is compromised.

How Plakar secures your Proton Drive workflows

Plakar integrates with Proton Drive as a flexible bridge for your data:

  • Source Connector: Take snapshots of your Proton Drive data and store them in a secure Kloset Store.
  • Storage Connector: Use Proton Drive as storage for your encrypted and deduplicated Plakar backups from other sources.
  • Destination Connector: Restore verified snapshots directly back to your Proton Drive account when needed.

Plakar uses deduplication to minimize storage space and bandwidth usage while preserving full snapshot history.

Ready to protect your Proton Drive data?

Proton Drive docs

Security by design

Reduce your attack surface by keeping encryption keys out of storage. With true end-to-end encryption, your data is protected before it leaves the source and remains unreadable even to your storage provider.

  • End-to-end encryption with modern crypto (no compromise on "at-rest/in-transit")
  • Immutable snapshots with verifiable integrity
  • Tamper-proof metadata and audit logs
  • Zero-trust-friendly architecture
"You don’t have to trust your storage provider."
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Regroup all your data protection workflows in one platform

From edge devices to SaaS platforms and hybrid clouds, Plakar keeps your data safe, synced, and instantly restorable: all from one unified tool.

For SaaS, endpoints & edge

Whether you're backing up remote laptops, on-premise servers or third-party SaaS data, Plakar gives you full control. Immutable backups, minimal storage, full flexibility. Even in disconnected environments.

In your data center

Legacy systems or critical data. All backed up with the same simplicity. Plakar integrates directly into your infrastructure with powerful CLI, orchestration support, and instant recovery.

Across clouds

Cloud-native or multi-cloud? No problem. Plakar works seamlessly with object storage, S3-compatible services, and hybrid environments, without locking you in or slowing you down.

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Plakar is not another complex “backup project”. Gain peace of mind with little investment while protecting what matters.

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